Size to be measured

A sinusoidal alternating signal is entirely characterized by its frequency, phase and one of the following parameters:

• rms value U _eff ;

• average value after rectification U _mr ;

• peak value U _c ;

• peak-to-peak value U _cc .

These parameters are linked by the following relationships: $U_{\text{eff}}=\frac{U_{\text{c}}}{\sqrt{2}}{U}_{\text{m}\text{r}}=\frac{2U_{\text{c}}}{\text{π}}{U}_{\text{cc}}=2U_{\text{c}}$